This beautiful "lagoon" is actually a toxic soup filled with cars, carcasses, and trash. When warnings couldn't stop people from going for a dip, the town dyed it black.

The forest that inspired Winnie-the-Pooh's Hundred Acre Wood can be found outside London.

This crumbling folly looks like an enchanted left over from Middle Earth.

A musical composition 1000 years in length plays at the Trinity Buoy Wharf in London.

Charles Babbage's proto-computer, painstakingly brought to life.

An abandoned tank sits in an empty London lot as a symbolic middle finger to local city planners.

19th-century scientists would make the pilgrimage here to verify the precision of their measuring sticks.

A mysterious pair of mice eating a piece of cheese is London's smallest public sculpture.

Besieged by war, this castle ruin has crumbled into a peaceful picnic spot.

The largest stone circle in the world has ended up bringing up more questions than it has answered.

Western Europe's only representation of a Roman goddess still in its original location sits in an unassuming park.

Traveling collection of amazing automata.

England's oldest surviving hedge maze has been confusing visitors for over 300 years.

Collection dedicated to brands, packaging and advertising.

This 1920s Dutch barge is now a floating bookstore.

These ancient sunken lanes were naturally tunneled into the soft ground by countless footsteps.

The largest cave chamber in Britain—big enough to fit a whole cathedral inside.

This hidden green space is the city's second largest conservatory.

This iconic 1,000-year-old medieval castle is a favorite of the film industry, most notably as the location for Hogwarts in Harry Potter.

An small and easily overlooked archaeology museum chock full of Egyptian artifacts.

Giant, friendly pelicans in Central London, the most unlikely of places.

After nearly 60 years, there's still a bear at Paddington Station looking for help.

Created hundreds of years ago, the magical follies and landscapes at this park were almost lost to time before being restored.

Abstract dinosaur models in London.